CN104475215A - Integrated production technology of rock-fill dam high-standard transition material - Google Patents

Integrated production technology of rock-fill dam high-standard transition material Download PDF

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Publication number
CN104475215A
CN104475215A CN201410642783.3A CN201410642783A CN104475215A CN 104475215 A CN104475215 A CN 104475215A CN 201410642783 A CN201410642783 A CN 201410642783A CN 104475215 A CN104475215 A CN 104475215A
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explosion
building stones
rock
transition materials
discharging opening
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CN104475215B (en
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李法海
薛凯
周广稳
韩兴
郑正勤
熊亮
陈曦
曹海君
叶伟
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Sinohydro Bureau 5 Co Ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C21/00Disintegrating plant with or without drying of the material
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21CMINING OR QUARRYING
    • E21C47/00Machines for obtaining or the removal of materials in open-pit mines
    • E21C47/10Machines for obtaining or the removal of materials in open-pit mines for quarrying stone, sand, gravel, or clay
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42AMMUNITION; BLASTING
    • F42DBLASTING
    • F42D3/00Particular applications of blasting techniques
    • F42D3/04Particular applications of blasting techniques for rock blasting

Abstract

An integrated production technology of a rock-fill dam high-standard transition material comprises the following steps: carrying out blasting exploitation on stones in an economic unit consumption manner; carrying out coarse crushing and middle crushing on the blasted stones, wherein the middle crushed stones account for 40-60% of the amount of the coarse crushed stones; carrying out mixing conveying on 10-40% of the coarse crushed stones and 40-60% of the middle crushed stones; and transporting the stones to a rock-fill dam construction filed through a self-unloading automobile. The technology solves the disadvantages of present blasting direct exploitation methods and sand and stone aggregate mixing methods, guarantees the quality of the transition material, and also has the characteristics of great reduction of the material field blasting cost, improvement of the bursting charge utilization rate, improvement of the construction benefit, and very substantial economic benefit.

Description

A kind of integral manufacturing technique of rock-fill dams high standard Transition Materials
Technical field
The present invention relates to a kind of Construction for Hydroelectric Project technique, specifically a kind of rock-fill dams high standard Transition Materials integral manufacturing technique.
Background technology
Transition Materials fills in Hydraulic and Hydro-Power Engineering rock-fill dams between bedding material (filter material) and main rockfill area, mainly plays the transition to dam body compatible deformation and osmotic control (as: draining and the filter protection to bedding material) effect.Therefore, the design grating requirement of Transition Materials is continuous, index is comparatively strict.
According to data at home and abroad, the production technology of current rock-fill dams Transition Materials mainly contains 2 kinds:
1. explosion directly adopts method; Determine rational blasting parameter in building stones field by test, Transition Materials is produced in the direct explosion in stock ground.The topographic and geologic conditional request of the method to building stones field is higher, if building stones field lithology explosiveness is poor, Transition Materials then needs the explosive consumption explosion adopting high accuracy and high unit consumption, construction cost is high, explosion production intensity is low, explosion is directly adopted by the change of stock ground ROCK CONDITIONS and fluctuates, quality is unstable, and explosion Transition Materials often needs to dig in process of assembling and carries out sorting, reject and exceed the building stones that the oversize stone of the particle diameter of design standard and other gratings do not meet Transition Materials standard-required, it is low that Transition Materials utilization rate is directly adopted in explosion;
2. mix and join sandstone aggregate method; The party's rule takes into full account that the explosion Transition Materials of building stones field can quick-fried condition, and according to the Transition Materials grating detection case of stock ground explosion actual production, to fill Transition Materials design objective for desired value, correspondence mixes the sandstone aggregate of joining required grating.The method is mixed and is joined the general vertical technique of adopting of tiling that adopts and carry out mixing joining, and to ensure that mix effect grating is continuous, and the method Transition Materials need of production takies mixing of certain area joins place, and mix the sandstone aggregate of joining expensive, process costs is higher simultaneously.
Summary of the invention
The object of this invention is to provide a kind of integral manufacturing technique of rock-fill dams high standard Transition Materials, with adopt economic explosion unit consumption, in conjunction with coarse crushing, in broken processing, and complete slightly at belt conveyor, the mixing of medium stone material, guaranteeing, under Transition Materials quality of production condition, significantly to reduce construction cost.
The object of the present invention is achieved like this: a kind of integral manufacturing technique of rock-fill dams high standard Transition Materials, carries out according to the following steps:
1) economy unit consumption, is selected to carry out the operation of blasting excavation building stones
First carry out pore-creating and the bursting work of building stones field, explosion selects economy unit consumption to carry out explosion, and blasting parameter is as follows:
Shoulder height 15m, over drilling depth 2m, bore diameter 120mm, bore angle 90 °, pattern is rectangle, stemming length 3m, array pitch 5 × 4m (i.e. array pitch 5m, line-spacing 4m), unit consumption 0.5kg/m 3, detonation mode is V-type, and charge constitution is not for be coupled continuously, and explosive type is 2# rock emulsion explosive;
2), broken process
Mix the technique forming finished product material after broken in adopting coarse crushing to add to the building stones after the explosion of building stones field to carry out:
Coarse smash equipment adopts jaw crusher, and its charging particle diameter is less than 80cm, and discharging particle diameter is less than 30cm, in broken equipment adopt gyratory crusher, its charging particle diameter is less than 30cm, in broken ratio be 40% ~ 60% of coarse crushing amount;
Above-mentioned disintegrating apparatus is installed in the following manner:
The charging aperture of jaw crusher is connected with the discharging opening of grizzly feeder, first belt conveyor is positioned at immediately below the discharging opening of jaw crusher, feeding-distribution device charging aperture is arranged on below the first belt conveyor discharging opening, 40% ~ 60% of building stones after jaw crushing crusher machine fall on the second belt conveyor by a discharging opening of middle feeding machine, cone crusher machine inlet capable is arranged on immediately below the second belt conveyor discharging opening, all the other building stones after jaw crushing crusher machine fall on the 3rd belt conveyor through another discharging opening of middle feeding machine, 4th belt conveyor is arranged on below the 3rd belt conveyor discharging opening and gyratory crusher discharging opening,
Above-mentioned disintegrating apparatus adopts portable crushing plant, then this disintegrating apparatus is arranged on stock ground excavation face, the building stones after explosion are directly grabbed the hopper into grizzly feeder by hydraulic hoe; Or above-mentioned disintegrating apparatus adopts fixed disintegrating apparatus, suitable broken production process region is selected in stock ground, and the hopper of grizzly feeder is arranged on below broken process regional platform, the building stones after explosion are discharged into this hopper automatically by dump truck;
3), entrucking is transported to rock-fill dam construction scene
Adopt hydraulic hoe to load dump truck the building stones after broken process fragmentation, be transported to rock-fill dam construction by dump truck on-the-spot for construction.
Key point of the present invention is:
1. be about 0.5kg/m in explosion unit consumption 3when, utilize large aperture, wide_hole distance elementary errors extruding blasting method explosion go out stock ground explosion raw material, as the material source carrying out lower road broken process.
2. according to the grain composition index of stock ground explosion raw material and Transition Materials designing requirement, apolegamy packaged type disintegrating apparatus or fixed disintegrating apparatus, simultaneously in conjunction with the testing and verification of certain play, determine relevant parameter (feed gap dimension, maximum feed granularity, discharging-material size etc.) that is fixed or packaged type disintegrating apparatus.
3. apolegamy suitable types and relevant parameter adjustment after mobile crushing equipment (containing coarse crushing and in broken equipment) drive to stock ground excavation face, adopt hydraulic hoe to be got rid of by explosion raw material and be filled to stock ground portable crushing plant hopper, the fragmentation production that its crushing system carries out Transition Materials sent into by raw material by the oscillating feeder carried by mobile crushing equipment (i.e. grizzly feeder).
Under the fixing disintegrating apparatus condition of employing, by hydraulic hoe, shot material is loaded dump truck and shot material is transported to broken on-the-spot by dump truck again, and be discharged into the hopper of disintegrating apparatus, carry out coarse crushing and in broken processing.
4. portable or fixed or the fixed disintegrating apparatus of broken in-site installation (finished product material) discharge outlet is provided with belt conveyor, coarse crushing building stones and 40 ~ 60% medium stone material mix on belt conveyor and carry, direct discharging, to the dump truck rested on below discharging opening, realizes automatic loading.
By above-mentioned steps, the Transition Materials met design requirement can be produced.
It should be noted that: the mobile crushing equipment that this method adopts is adapted to the coarse crushing of stock ground shot material, is portable jaw crushing equipment.Due to stock ground topographic and geologic condition affect the fluctuation of the explosion raw material caused time, the parameter adjustment of mobile crushing equipment can be carried out according to material source detection case, also increase mobile crushing equipment (portable gyratory crusher) can be assisted again to carry out in building stones broken, guarantee that broken Transition Materials quality meets design requirement.
The invention has the beneficial effects as follows: the present invention adopts movement or fixing disintegrating apparatus to carry out the production of high standard Transition Materials.The broken material source material that the unit consumption explosion of integrated economics goes out, through coarse crushing, in the processing such as broken and blending be met the Transition Materials of designing requirement, solve Transition Materials and directly adopt difficult problem.
The present invention avoids conventional blasting method method and mixes joining sandstone aggregate method, and be difficult to directly obtain Transition Materials, explosion unit consumption is high, and construction cost is high, and building stones utilization rate is low and need to take to mix to join place, the problems such as construction intensity is low.Under the prerequisite guaranteeing the Transition Materials quality of production and production intensity, decrease construction cost, reach the object of broken production high standard Transition Materials simultaneously.
Adopt the high-level Transition Materials integral manufacturing technique of rock-fill dams of the present invention, disintegrating apparatus portable after raw material fragmentation is broken, directly belt-conveying entrucking is adopted after broken, technique can adapt to the mobile needs of place conversion in the recovery process of stock ground, define the integrated Transition Materials Sequential Production of explosion → fragmentation → belt entrucking, without the need to occupied ground, the Transition Materials grating that preparation is produced is continuous, steady quality is reliable, significantly can reduce stock ground blast working cost, improve efficiency of construction, improve bursting charge utilization rate, economic benefit is extremely remarkable, there are high promotion and application be worth.
Advantage of the present invention specifically will be set forth in conjunction with detailed description of the invention.
Accompanying drawing explanation
Fig. 1 is the process equipment layout drawing that the present invention adopts portable crushing plant (being arranged on stock ground excavation face).
In Fig. 1: high blast rig 1 (pore-creating, explosion), hydraulic hoe 2, batcher 3, mobile crushing equipment 4 (containing jaw crusher and gyratory crusher), belt conveyor 5, dump truck 6.
Fig. 2 is that the present invention adopts the process equipment layout drawing of fixed disintegrating apparatus (mainly illustrate coarse crushing and in the installation site of broken equipment and belt conveyor).
Fig. 3 is Transition Materials broken forward backward averaging grading curve figure.
Detailed description of the invention
For the creativeness of this method is better described, below in conjunction with engineering example, the specific embodiment of the invention is further detailed.
Power station, dam, long river, Dadu River gravelly soil core wall dam engineering crest elevation 1697m, maximum height of dam 240m, dam filing amount about 3300 ten thousand stere, wherein the dam Transition Materials amount of filling 2,460,000 m 3.
Transition Materials maximum particle diameter is not more than 400mm, and the granule content being less than 0.075mm is not more than 3%, and the granule content being less than 5mm is not more than 17%, is not less than 4%, D15≤20mm.
Because stock ground rock blastability is poor, high-level designing requirement in addition.Engineering Transition Materials in early stage in dam, long river is produced all to adopt to mix and is joined sandstone aggregate or high unit consumption carries out explosion acquisition, and Specific construction situation is as follows:
In June ,-2014 on July 25th, 2012, chew building stones field in ditch building stones field, power station Xiangshui County, dam, long river and river and carried out more than 20 Transition Materials explosion bulge tests.Duration of test has carried out the selection of a large amount of blasting parameter: explosion unit consumption is by 0.75kg/m 3be adjusted to 2.5kg/m 3, hole pattern area is by 11.7m 2be adjusted to 1.3m 2, bore diameter is adjusted to 90mm by 120mm, and shoulder height is adjusted to 10m by 15m, and explosive type adopts 2# rock emulsification and ammonium nitrate-fuel oil mixture contrast etc.After on-the-spot explosion bulge test completes, choose representational bursting charge and carried out testing inspection, its sampling result shows: bursting charge fine grained is on the low side, and coarse fodder is more, and indices and grading curve all do not meet Transition Materials designing requirement.
Realize engineering and to pass the flood period target for meeting dam embankment, the engineering following mode of production that early stage, Transition Materials was successively taked:
(1) mix and join sandstone aggregate
Clay core wall of earth dam Transition Materials adopts to mix joins acquisition, and transition material mixture material material source is by Xiangshui County ditch (unit consumption 1.8kg/m 3) explosion production, blasting parameter is in table 1.
Table 1 transition material mixture material raw material blasting parameter table
Transition Materials and aggregate mixed ratio and various corresponding density of preparing burden of mixing are in table 2.
Table 2 Transition Materials and aggregate mixed ratio and variously mix corresponding density of preparing burden
Test testing staff in dam filing process to have carried out sampling detecting to the Transition Materials after having rolled, its testing result shows, Transition Materials indices all meets dam filing technical requirement.
(2) strong explosion is produced
In June, 2014, engineering design enterprise adjusts Transition Materials grating again, and to have carried out unit consumption be 2.0kg/m chewing building stones field in the good river of rock blastability 3, 2.2kg/m 3and 2.5kg/m 3three Transition Materials explosion bulge tests.In process of the test, bursting charge utilization rate and explosion achievement are analyzed.
Explosion bulge test result surface, each play Transition Materials all meets design requirement, and determines that follow-up Transition Materials adopts explosion unit consumption 2.2kg/m after considering bursting charge utilization rate and economic analysis 3produce.Blasting parameter is in table 3.
Table 3 Transition Materials blasting parameter table
Engineering directly to be adopted by high unit consumption explosion and is mixed and join aggregate method and carry out the Transition Materials mode of production early stage, has the following disadvantages:
The meticulous explosion of high unit consumption directly adopts method: firer's material unit consumption is high, and pore-creating amount is large, and explosion production intensity is difficult to meet filling ontensity demand, and construction cost is high; Explosion is directly adopted by the change of stock ground ROCK CONDITIONS and fluctuates, and quality is unstable; Explosion Transition Materials needs sorting defective (oversize and the discontinuous material of grating) building stones utilization rate low digging in process of assembling.
Mix and join sandstone aggregate method: aggregate is expensive, process costs is high; Mix and join needs and take necessarily to mix and join place, mix that to join production efficiency low; Explosion Transition Materials is digging dress and is mixing to join in process and need sorting defective (oversize stone) building stones, and utilization rate is low.
By research, this engineering proposes building stones field and first adopts economy unit consumption to carry out explosion, and explosion raw material is again through the production technology of the Transition Materials of mobile crushing equipment fragmentation, and the concrete implementation step of technique is as follows:
1. first carry out pore-creating and the bursting work of building stones field, explosion selects economy unit consumption to carry out explosion, and blasting parameter sees the following form 4, produces broken Transition Materials raw material by explosion.
Table 4 Transition Materials broken raw material blasting parameter table
2. according to the grain composition index of stock ground explosion raw material and Transition Materials designing requirement, apolegamy packaged type disintegrating apparatus, simultaneously in conjunction with the testing and verification of certain play, determine that the relevant parameter of packaged type disintegrating apparatus (adopts C125 jaw crusher, charging particle diameter is less than 1250*950mm, and discharging-material size is less than 350mm etc.).
3. the LT125 type of dam, long river engineering apolegamy moves jaw crusher, equipment is driveed to stock ground excavation face, adopt hydraulic hoe to be got rid of by explosion raw material and be filled to stock ground portable crushing plant hopper, the fragmentation production that its crushing system carries out Transition Materials sent into by raw material by the oscillating feeder carried by mobile crushing equipment.Finally, adopt hydraulic hoe to load dump truck the building stones after broken process fragmentation, be transported to rock-fill dam construction by dump truck on-the-spot for construction.
Dam, long river Hydropower Project Transition Materials is produced the mobile crushing equipment design parameter chosen and is seen the following form:
Dam, table 5 long river Transition Materials mobile crushing primary parameters of test apparatus
See Fig. 2 (in Fig. 2, blasting excavation operation 8, broken process 9 comprise coarse crushing, in broken and mix processing) coarse smash equipment adopts jaw crusher, its charging particle diameter is less than 80cm, discharging particle diameter is less than 30cm, in broken equipment adopt gyratory crusher, its charging particle diameter is less than 30cm, in broken ratio be 40% ~ 60% of coarse crushing amount; Disintegrating apparatus is installed in the following manner:
The charging aperture of jaw crusher 903 is connected with the discharging opening of grizzly feeder 902, first belt conveyor 904 is positioned at immediately below the discharging opening of jaw crusher 903, middle feeding machine (i.e. feeding-distribution device) 905 charging aperture is arranged on below the first belt conveyor 904 discharging opening, 40% ~ 60% of building stones after jaw crushing crusher machine fall on the second belt conveyor 906 by a discharging opening of middle feeding machine 905, gyratory crusher 908 charging aperture is arranged on immediately below the second belt conveyor 906 discharging opening, all the other building stones after jaw crushing crusher machine fall on the 3rd belt conveyor 907 through another discharging opening of middle feeding machine 905, 4th belt conveyor 909 is arranged on below the 3rd belt conveyor 907 discharging opening and gyratory crusher 908 discharging opening,
Above-mentioned disintegrating apparatus adopts portable crushing plant, then this disintegrating apparatus is arranged on stock ground excavation face, the building stones after explosion are directly grabbed the hopper 901 into grizzly feeder 902 by hydraulic hoe; Or above-mentioned disintegrating apparatus adopts fixed disintegrating apparatus, then the hopper 901 of grizzly feeder 902 is arranged on below road surface, the building stones after explosion are discharged into this hopper 901 automatically by dump truck 910;
The installation of two-stage disintegrating apparatus and many belt conveyors, the deadweight of building stones is utilized to carry out processing process from high to low, energy consumption can be saved, simultaneously, under the prerequisite ensureing Transition Materials quality, utilize belt conveyor to complete mixing and the conveying of thick, middle building stones, there is the effect of saving processing cost in engineering construction.
4. mobile crushing equipment (finished product material) discharge outlet is provided with belt conveyor, finished product material to the dump truck rested on below discharging opening, realizes automatic loading by the direct discharging of belt.
The production of high standard Transition Materials is achieved by above-mentioned steps.The production adopting the present invention to carry out Transition Materials ensure that the quality of Transition Materials, can overcome the deficiency that explosion is directly adopted, can obtain economic benefit again.
Carried out great number tested data statistics in conjunction with produced on-site, the broken forward backward averaging grading curve of its Transition Materials is shown in Fig. 3.
The broken forward backward averaging indicator-specific statistics of Transition Materials sees the following form.
Table 6 Transition Materials average grain grating table
As can be seen here, adopt the explosion of economy unit consumption to produce Transition Materials smashing principle, raw material carries out broken Transition Materials production technology through mobile crushing equipment again, directly can obtain the qualified Transition Materials meeting high standard and require.
By producing the technique of the Transition Materials of Transition Materials and economic unit consumption auxiliary moving fragmentation production to the strong explosion of the former high unit consumption of engineering, complete engineering residue 1,600,000 m 3transition Materials carries out Economic and Efficiency Analysis, sees the following form.
As can be seen from the above table, crusher machine scheme can reduce expenses about 1761.6 ten thousand yuan compared with strong blasting scheme.
Adopt the high-level Transition Materials integral manufacturing technique of rock-fill dams of the present invention, disintegrating apparatus portable after raw material fragmentation is broken, directly belt-conveying entrucking is adopted after broken, technique can adapt to the mobile needs of place conversion in the recovery process of stock ground, define the integrated Transition Materials integration production model of explosion → fragmentation → belt entrucking, without the need to occupied ground, the Transition Materials grating that preparation is produced is continuous, steady quality is reliable, significantly can reduce stock ground blast working cost, improve efficiency of construction, improve bursting charge utilization rate, there are high promotion and application be worth.
The explanation of broken production Transition Materials scheme
One, basic condition
1, core-wall Transition Materials index
Clay core wall of earth dam Transition Materials major design technical requirement is as follows:
(1) Transition Materials maximum particle diameter is not more than 400mm;
(2) granule content being less than 0.075mm is not more than 3%;
(3) granule content being less than 5mm is not more than 17%, is not less than 4%, D15≤20mm.Transition Materials grating should be good continuously.
2, core wall filling building situation
Clay core wall of earth dam Transition Materials is the amount of filling about 2,460,000 m always 3, filled about 750,000 m at present 3, reclamation level EL1547m, the residue amount of filling about 1,710,000 m 3.
3, clear and definite at present blasting parameter
Dam pass the flood period Transition Materials between filling craft take high unit consumption explosion semi-finished product tile again vertical adopt to mix join aggregate explained hereafter.In June, 2014 design modifying Stage language, determine blasting parameter by test, see the following form:
The selected table of Transition Materials blasting parameter
Two, the explosion deficiency of directly adopting
Directly adopted by nearly section time explosion, have the following disadvantages:
(1) building stones field working area is chewed less than 30,000 m3 in river, produces stockpile and Transition Materials simultaneously, and scene coordinates comparatively difficulty;
(2) explosion is directly adopted by the change of stock ground ROCK CONDITIONS and fluctuates, and quality is unstable;
(3) explosion Transition Materials needs sorting digging in process of assembling, and limitting by excavator bucket capacity and operative employee's level, separating effect is not good, adds the treating capacity behind dam and the amount of doing over again;
(4) because unit consumption is high, pore-creating amount is large, and explosion production intensity is difficult to meet filling ontensity demand.
Three, broken scheme
1, summarize
Broken production system production capacity is about 600t/h, mixes the technique forming finished product material and carry out after broken in adopting coarse crushing to add.Coarse smash equipment charging particle diameter is less than 80cm, and discharging particle diameter is less than 30cm, in broken equipment charging particle diameter be less than 30cm, in broken ratio be 40% ~ 60%.Middle particle and coarse particles are delivered to finished product stockpile after belt conveyor blending.
Four, unitary analysis
Carry out cost analysis respectively according to existing three schemes, analyze content as follows:
Scheme one: material source adopts strong explosion to produce Transition Materials, and explosive specific charge is 2.2kg/m 3, boring expense is worked out with reference to Wenzhou razor-edge contract, and explosion and shipment unit price are worked out with reference to remote corporate unit contract price.
Scheme two: adopt strong explosion to produce, the stockpile of material source employing explosion is transported to Jiang Zui and carries out fragmentation, the upper dam of accept shipment after fragmentation.Boring expense is worked out with reference to Wenzhou razor-edge contract, and explosion and shipment unit price are worked out with reference to remote corporate unit contract price.
Scheme one: strong explosion production decision unit price
Sequence Project name Unit Unit price Coefficient of colligation Comprehensive unit price Remarks
1 Boring Heap side 21.45 1.36 29.17
2 Explosion Heap side 30.56 1.36 41.56
3 Select materials Heap side 1.35 1 1.35
4 Oversize masonry is stockpile Heap side -19.42 0.27 -5.24
5 Transport Heap side 19.12 1 19.12
6 Upper dam material comprehensive unit price Heap side 85.96
Scheme two: Jiang Zui is built a station production decision unit price

Claims (2)

1. an integral manufacturing technique for rock-fill dams high standard Transition Materials, is characterized in that, carries out according to the following steps:
1) economy unit consumption, is selected to carry out the operation of blasting excavation building stones
First carry out pore-creating and the bursting work of building stones field, explosion selects economy unit consumption to carry out explosion, and blasting parameter is as follows:
Shoulder height 15m, over drilling depth 2m, bore diameter 120mm, bore angle 90 °, pattern is rectangle, stemming length 3m, array pitch 5 × 4m, unit consumption 0.5kg/m3, detonation mode is V-type, and charge constitution is not for be coupled continuously, and explosive type is 2# rock emulsion explosive;
2), broken process
Mix the technique forming finished product material after broken in adopting coarse crushing to add to the building stones after the explosion of building stones field to carry out:
Coarse smash equipment adopts jaw crusher, and its charging particle diameter is less than 80cm, and discharging particle diameter is less than 30cm, in broken equipment adopt gyratory crusher, its charging particle diameter is less than 30cm, in broken ratio be 40% ~ 60% of coarse crushing amount; Above-mentioned disintegrating apparatus is installed in the following manner:
The charging aperture of jaw crusher (903) is connected with the discharging opening of grizzly feeder (902), first belt conveyor (904) is positioned at immediately below the discharging opening of jaw crusher (903), middle feeding machine (905) charging aperture is arranged on below the first belt conveyor (904) discharging opening, 40% ~ 60% of building stones after jaw crushing crusher machine fall on the second belt conveyor (906) by a discharging opening of middle feeding machine (905), gyratory crusher (908) charging aperture is arranged on immediately below the second belt conveyor (906) discharging opening, all the other building stones after jaw crushing crusher machine fall on the 3rd belt conveyor (907) through another discharging opening of middle feeding machine (905), 4th belt conveyor (909) is arranged on below the 3rd belt conveyor (907) discharging opening and gyratory crusher (908) discharging opening,
Above-mentioned disintegrating apparatus adopts portable crushing plant, then this disintegrating apparatus is arranged on stock ground excavation face, the building stones after explosion are directly grabbed the hopper (901) into grizzly feeder (902) by hydraulic hoe; Or above-mentioned disintegrating apparatus adopts fixed disintegrating apparatus, then the hopper (901) of grizzly feeder (902) is arranged on below road surface, the building stones after explosion are discharged into this hopper (901) automatically by dump truck (910);
3), entrucking is transported to rock-fill dam construction scene
Adopt hydraulic hoe to load dump truck the building stones after broken process fragmentation, be transported to rock-fill dam construction by dump truck on-the-spot for construction.
2. the integral manufacturing technique of a kind of rock-fill dams high standard Transition Materials according to claim 1, is characterized in that, the model of described jaw crusher is C125, and its charging particle diameter is less than 1250*950mm, and discharging-material size is less than 350mm.
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CN201912985U (en) * 2010-11-25 2011-08-03 天瑞集团水泥有限公司 Limestone crushing device
CN202762516U (en) * 2012-09-06 2013-03-06 四川省川威集团有限公司 Granite machining system
CN103591860A (en) * 2013-11-29 2014-02-19 武汉大学 Water coupling gunpowder filling and ignition method for improving small-particle-size material content of rock-fill dam transition material

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CN105903540A (en) * 2016-06-22 2016-08-31 中国葛洲坝集团第五工程有限公司 Preparation system and method of rock-fill dam bedding material
CN106111297A (en) * 2016-08-15 2016-11-16 安徽马钢工程技术集团有限公司 The ore-dressing technique of a kind of chromium depleted zone and production system thereof

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